142421435 has 16 divisors (see below), whose sum is σ = 193740960. Its totient is φ = 99636480.

The previous prime is 142421417. The next prime is 142421491. The reversal of 142421435 is 534124241.

It is not a de Polignac number, because 142421435 - 2²⁰ = 141372859 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56426 + ... + 58895.

It is an arithmetic number, because the mean of its divisors is an integer number (12108810).

Almost surely, 2^142421435 is an apocalyptic number.

142421435 is a deficient number, since it is larger than the sum of its proper divisors (51319525).

142421435 is a wasteful number, since it uses less digits than its factorization.

142421435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115358.

The product of its digits is 3840, while the sum is 26.

The square root of 142421435 is about 11934.0452068861. The cubic root of 142421435 is about 522.2259545950.

Adding to 142421435 its reverse (534124241), we get a palindrome (676545676).

The spelling of 142421435 in words is "one hundred forty-two million, four hundred twenty-one thousand, four hundred thirty-five".